Silver Maple - Acer saccharinum

Leaf:  opposite, simple; 4-6" (10-15 cm) long and nearly as wide, broadly ovate, deeply 5 lobed and long-pointed (middle lobe often 3-lobed); double saw-toothed, with 5 main veins from base; becoming hairless; slender drooping reddish leafstalk, dull green above, silvery-white beneath; turning pale yellow in autumn.

Flower:  1/4" (6 mm) long; reddish buds turning greenish-yellow; crowded in nearly stalkless clusters; male and female in separate clusters; in late winter or very early before leaves.

Fruit:  1 1/2-2 1/2" (4-6 cm) long including long broad wing; paired, widely forking keys; light brown, 1 seeded; maturing in spring.

Twig:  light green to brown; long, spreading and often slightly drooping, hairless; with slightly unpleasant odor when crushed.

Bark:  gray; becoming furrowed into long scaly shaggy ridges.

Form:  large tree with short, stout trunk, few large forks, spreading, open irregular crown of long, curving branches.

Habitat:  Wet soils of stream banks, flood plains, and swamps; with other hardwoods.

Range:  southern Ontario east to New Brunswick, south to northwestern Florida, west to eastern Oklahoma, north to northern Minnesota; to 2000' (610 m), higher in mountains.

Location:  on the Bunker Hill High School campus, south of gym.
                 latitude:  39o02.38N
                 longitude:  089o57.65W

Silver Maple summerSilver Maple leaf
Silver Maple bark
 

The silver maple is a popular shade tree due to its rapid growth.  The branches are brittle and easily broken in a windstorm.  Sugar can be obtained from the sweetish sap, but the yield is low.

© Community Unit School District #8, Bunker Hill
    504 E. Warren, Bunker Hill, IL  62014

References:
Little, Elbert L. Field Guide to Trees:  Eastern Region.  New York, NY:  Alfred A. Knopf Inc., 1980.
Mohlenbrock, Robert H. Forest Trees of Illinois.  Springfield, IL:  1992

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